6464455211250 has 240 divisors, whose sum is σ = 18539220750336. Its totient is φ = 1621805760000.

The previous prime is 6464455211189. The next prime is 6464455211293. The reversal of 6464455211250 is 521125544646.

6464455211250 is a `hidden beast` number, since 6 + 4 + 6 + 44 + 552 + 1 + 1 + 2 + 50 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a junction number, because it is equal to n+sod(n) for n = 6464455211196 and 6464455211205.

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 639343695 + ... + 639353805.

Almost surely, 2^{6464455211250} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6464455211250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9269610375168).

6464455211250 is an abundant number, since it is smaller than the sum of its proper divisors (12074765539086).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6464455211250 is a wasteful number, since it uses less digits than its factorization.

6464455211250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13499 (or 13481 counting only the distinct ones).

The product of its (nonzero) digits is 1152000, while the sum is 45.

The spelling of 6464455211250 in words is "six trillion, four hundred sixty-four billion, four hundred fifty-five million, two hundred eleven thousand, two hundred fifty".